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5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
im illhave to talk to my dad he can better answer that question..i did pull some more pplugs out and it is running rather lean..so i bumped fuel pressure up..( cars getting dyno tuned next month)